Product comparison · 2 monitors

Lenovo Flat Panel Essential LI1931e computer monitor vs Lenovo ThinkVision 28

23specifications compared
15differ
8identical
50known for one product only

Key differences

Display diagonal
- Flat Panel Essential LI1931e computer monitor:47 cm (18.5")
- ThinkVision 28:71.1 cm (28")
Display resolution
- Flat Panel Essential LI1931e computer monitor:1366 x 768 pixels
- ThinkVision 28:3840 x 2160 pixels
Touchscreen
- Flat Panel Essential LI1931e computer monitor:No
- ThinkVision 28:Yes
Contrast ratio (typical)
- Flat Panel Essential LI1931e computer monitor:600:1
- ThinkVision 28:1000:1
Viewing angle, vertical
- Flat Panel Essential LI1931e computer monitor:50°
- ThinkVision 28:160°
Built-in speaker(s)
- Flat Panel Essential LI1931e computer monitor:No
- ThinkVision 28:Yes
Built-in camera
- Flat Panel Essential LI1931e computer monitor:No
- ThinkVision 28:Yes
USB Type-A downstream ports quantity
- Flat Panel Essential LI1931e computer monitor:0
- ThinkVision 28:4

Side by side

Differences highlightedShow differences only

Comparison of LI1931e, ThinkVision 28
73 specifications	A Lenovo Flat Panel Essential LI1931e computer monitor Model LI1931e View product	B Lenovo ThinkVision 28 View product
Display5 differ
Display diagonalDiffers	47 cm (18.5")	71.1 cm (28")
Display resolutionDiffers	1366 x 768 pixels	3840 x 2160 pixels
Display technologyKnown for one	Unknown — not stated by the source	LCD
TouchscreenDiffers	No	Yes
HD typeKnown for one	Unknown — not stated by the source	4K Ultra HD
Panel typeKnown for one	Unknown — not stated by the source	TFT
LED backlightKnown for one	Unknown — not stated by the source	Yes
Touchscreen typeKnown for one	Unknown — not stated by the source	Tabletop
Number of simultaneous touchpointsKnown for one	Unknown — not stated by the source	10
Display brightnessKnown for one	Unknown — not stated by the source	270 cd/m²
Response time	5 ms	5 ms
Screen shapeKnown for one	Unknown — not stated by the source	Flat
Contrast ratio (typical)Differs	600:1	1000:1
Viewing angle, verticalDiffers	50°	160°
Pixel pitchKnown for one	Unknown — not stated by the source	0.16 x 0.16 mm
Viewable size, horizontalKnown for one	Unknown — not stated by the source	62.1 cm
Viewable size, verticalKnown for one	Unknown — not stated by the source	34.1 cm
Native aspect ratioKnown for one	16:9	Unknown — not stated by the source
Display brightness (typical)Known for one	250 cd/m²	Unknown — not stated by the source
Supported graphics resolutionsKnown for one	1366 x 768	Unknown — not stated by the source
Aspect ratioKnown for one	16:9	Unknown — not stated by the source
Display number of coloursKnown for one	16.78 million colours	Unknown — not stated by the source
3DKnown for one	No	Unknown — not stated by the source
Performanceidentical
NVIDIA G-SYNCKnown for one	Unknown — not stated by the source	No
AMD FreeSyncKnown for one	Unknown — not stated by the source	No
Multimedia2 differ
Built-in speaker(s)Differs	No	Yes
Number of speakersKnown for one	Unknown — not stated by the source	2
RMS rated powerKnown for one	Unknown — not stated by the source	10 W
Built-in cameraDiffers	No	Yes
Megapixel (approx.)Known for one	Unknown — not stated by the source	2.1 MP
Built-in microphoneKnown for one	Unknown — not stated by the source	Yes
Designidentical
Product colour	Black	Black
Housing materialKnown for one	Unknown — not stated by the source	Aluminium
Market positioningKnown for one	Business	Unknown — not stated by the source
Ports & interfaces2 differ
Built-in USB hubKnown for one	Unknown — not stated by the source	Yes
USB hub versionKnown for one	Unknown — not stated by the source	3.2 Gen 1 (3.1 Gen 1)
Number of upstream portsKnown for one	Unknown — not stated by the source	1
USB Type-A downstream ports quantityDiffers	0	4
HDMIKnown for one	Unknown — not stated by the source	Yes
HDMI ports quantityDiffers	0	3
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Audio outputKnown for one	Unknown — not stated by the source	1
Headphone outputsKnown for one	Unknown — not stated by the source	1
Mobile High-Definition Link (MHL)Known for one	Unknown — not stated by the source	Yes
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
HDCPKnown for one	No	Unknown — not stated by the source
Ergonomics1 differ
Height adjustmentKnown for one	Unknown — not stated by the source	Yes
Adjustable height (max)Known for one	Unknown — not stated by the source	11 cm
Swivel angle rangeKnown for one	Unknown — not stated by the source	-45 - 45°
Tilt adjustment	Yes	Yes
Tilt angle rangeDiffers	-5 - 20°	-5 - 25°
On Screen Display (OSD)	Yes	Yes
Number of OSD languages	8	8
VESA mountingKnown for one	Yes	Unknown — not stated by the source
Panel mounting interfaceKnown for one	100 x 100 mm	Unknown — not stated by the source
Cable lock slotKnown for one	No	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%	8 - 80%
Weight & dimensions4 differ
Width (without stand)Differs	440 mm	681.9 mm
Depth (without stand)Differs	170 mm	259.5 mm
Height (without stand)Differs	340 mm	502.8 mm
Weight (without stand)Differs	2.45 kg	11 kg
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Other features1 differ
Heavy metals freeKnown for one	Unknown — not stated by the source	Hg (mercury)
Ethernet LAN (RJ-45) portsKnown for one	Unknown — not stated by the source	1
CertificationDiffers	China Energy Label Tier 1, EU RoHS, China RoHS, Turkey RoHS	c(TUV)us (USA/Canada), SASO (Saudia Arabia), TCO Display 6.0, VCCI(Japan), BSMI (Taiwan), EPA AIO 6.0/5.2 (USA), VOC (USA/Canada), Hygienic (Russia), SABS (South Africa), EPEAT Gold, GOST, EPEAT (USA), ICES-003 (Canada), CCC (China)
TV tuner integratedKnown for one	No	Unknown — not stated by the source
Supplied AC adapter typeKnown for one	LED	Unknown — not stated by the source
Poweridentical
AC input voltageKnown for one	100 - 240 V	Unknown — not stated by the source
AC input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Packaging contentidentical
Cables includedKnown for one	AC	Unknown — not stated by the source
Thin Clientidentical
Thin client installedKnown for one	No	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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